MESON Chess Problem Database

Problem Display
PID: 264071 (3n2Bk/8/K2R1qR1/4B1N1/2p5/1b6/8/b7 w - - 0 1)

Marik, Josef V

Tijdschrift vd KNSB, 1939

3n2Bk/8/K2R1qR1/4B1N1/2p5/1b6/8/b7

#2

6 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Sf7#
    • 1...Se6
      • 2.Sf7#
    • 1...Sb7
      • 2.Sf7#
    • 1...Sf7
      • 2.Sxf7#
    • 1...c3
      • 2.Bxf6#
  • Tries
    • 1.Bf7?
      • threat
        • 2.Rg8#
      • 1...Qg7
        • 2.Rxd8#
        • 2.Rh6#
      • 1...Sxf7!
  • Keys
    • 1.Bh7!
      • threat
        • 2.Rg8#
      • 1...Qg7
        • 2.Rxd8#
      • 1...c3
        • 2.Bxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • S(e);N_GUARD,N_PINR(D)::S(B)
    • S(e);N_GUARD::S(B)
    • S(e);N_GUARD::S(B),XS(e)
    • P(c);S_CUTB(a)::B(A),XQ(d)
  • Tries
    • Try
      • B(F);
      • Threat
        • R1(E)
      • Refutation
        • S(e);XB(F)
  • Actual
    • B(F);
    • Threat
      • R1(E)
    • Vars
      • Q(d);N_PINR(D)::R(D),XS(e)
      • P(c);S_CUTB(a)::B(A),XQ(d)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).